i think that u can't, b/c php is server side while JS is client site. u can
doSubmit() when building is changed, then php script get infomation and
response to browser.
Trong Phuc
----- Original Message -----
From: "Phieu Huynh" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Sunday, November 11, 2001 4:31 PM
Subject: pass variable in JS to php and mysql-query
> <script language=javascript>
> function changebuilding (which) {
> sel_var = which.selectedIndex
> <?
> $sql_query = "select distinct room
> from general.room_info
> where building='$variable' group by level asc";
>
> $sql_result = mysql_query($sql_query) or die (" Can't execute the
> query");
>
> $i=0;
> while ($row = mysql_fetch_array($result_sec_level))
> print ("ar[".$i++."] = \"".$row[0]."\";\n");
> ?>
> for (i=0; i < ar.length; i++) {
> option = new Option(ar[i])
> document.myform.room.options[i]=option
> }
> }
> </script>
> <body>
> <form name=myform>
> Building : <select name=building onchange=changebuilding(this) >
> <option>1</option>
> <option>2</option>
> <option>3</option>
> </select>
> Room : <select name=room >
> </select>
> </form>
> </body>
>
>
> I can pass the variable in building to $variable by submit button
> but I want to pass the sel_var variable to $variable and dynamic update
> the content in room.
>
> --
>
> phil Huynh
>
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